Lamb-Wave Based Structural Health Monitoring in Polymer Composites [Hardcover]

The book focuses especially on the application of SHM technology to thin walled structural systems made from carbon fiber reinforced plastics. Here, guided elastic waves (Lamb-waves) show an excellent sensitivity to structural damages so that they are in the center of this book. It is divided into 4 sections dealing with analytical, numerical and experimental fundamentals, and subsequently with Lamb-wave propagation in fiber reinforced composites, SHM-systems and signal processing.

The book is designed for engineering students as well as for researchers in the field of structural health monitoring and for users of this technology.

Motivation.- Objectives.- Wave Propagation in Elastic Solids  An Analytical Approach.- Fundamental Principles of the Finite Element Method.- Experimental Methods.- Higher Order Finite Element Methods.- Hybrid Simulation MethodsCombining Finite Element and Analytical Methods.- Damping Boundary Conditions for a Reduced Solution Domain Size and Effective Numerical Analysis of Heterogeneous Waveguides.- The Finite Cell Method - A Higher Order Fictitious Domain Approach for Wave Propagation Analysis in Heterogeneous Structures.- A Minimal Model for Fast Approximation of Lamb Wave Propagation in Complex Aircraft Parts.- Continuous Mode Conversion in Experimental Observations.- Material Modeling of Polymer Composites for Numerical Investigations of Continuous Mode Conversion.- Localization of Damaging Events and Damage in Anisotropic Plates by Migration Technique.- Time-of-Flight Calculation in Complex Structures.- The Determination of Dispersion Curves from Measurements by the Matrix Pencil Method.- Damage Identification by Dynamic Load Monitoring.- Mode Selective Actuator-Sensor-Systems.- Virtual Sensors for SHM.- Lamb Wave Generation, Propagation and Interactions in CFRP Plates.- Structural Health Monitoring on the SARISTU Full Scale Door Surround Structure.

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